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ATSAMD21E17A-AUT

MCHPATSAMD21E17A-AUT

Microchip Technology
ARM® Cortex®-M0+ SAM D21E, Functional Safety (FuSa) Microcontroller IC 32-Bit 48MHz 128KB (128K x 8) FLASH 32-TQFP (7x7)
Active2,730 in stock
Datasheet Digi-Key Compare Prices

Overview

The ATSAMD21E17A-AUT is a Microchip SAM D21E series microcontroller based on a 32-bit ARM Cortex-M0+ core. It runs up to 48 MHz, includes 128 KB of flash, and is offered in a 32-pin TQFP (7x7) package. This variant is a Functional Safety (FuSa) device targeted at designs with safety requirements.

Why Choose This Part

This FuSa-designated SAM D21E part gives engineers a Cortex-M0+ MCU with a practical balance of performance (48 MHz) and 128 KB flash for typical control applications. The 32-pin TQFP package is friendly for prototyping and PCB assembly. Choosing a functional-safety variant simplifies design work when targeting safety-oriented systems and leverages Microchip's SAM D21 software ecosystem.

Applications

Safety-critical embedded control
Control and monitoring for industrial or appliance systems where functional safety design practices are required.
Industrial sensors and actuators
Embedded node controllers for sensors, valve drivers, or motor interlocks that need safety-aware MCUs.
Battery-powered and low-power IoT devices
Low-power, event-driven systems that need a balance of performance and energy efficiency with safety considerations.
Prototyping and education
Hobbyist and development use where a TQFP package simplifies hand-soldering and compatibility with SAMD21 software ecosystem (Arduino/Microchip).

Key Specifications

Speed 48MHz
RAM Size 16K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Connectivity I2C, LINbus, SPI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 26
Core Processor ARM Cortex-M0+
Package / Case 32-TQFP
Data Converters A/D 10x12b; D/A 1x10b
Oscillator Type Internal
Program Memory Size 128KB (128K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 32-TQFP (7x7)
Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.6V

Getting Started

Use Microchip/SAM D21 development boards (for example the SAMD21 Xplained family) or Arduino Zero-compatible boards to begin software bring-up. Toolchains include Microchip Studio/Atmel START, the ASF libraries, or the GNU Arm Embedded toolchain with GDB; the Arduino core for SAMD21 offers an easy path from the Arduino IDE. For hardware bring-up, a TQFP breakout or evaluation board speeds prototyping and debugging.

Dev Boards

Development boards and breakout modules featuring the ATSAMD21E17A-AUT or compatible chips — ready to use for prototyping.

Seeed Studio XIAO SAMD21 Seeed Technology Co., Ltd
ATSAMD21G18 XIAO SAMD21 SAM D ARM® Cortex®-M0 MCU 32-Bit Embedded Evaluation Board
Digi-Key 509 in stock
Seeed Studio XIAO SAMD21 Seeed Technology Co., Ltd
ATSAMD21G18 XIAO SAMD21 SAM D ARM® Cortex®-M0+ MCU 32-Bit Embedded Evaluation Board
Digi-Key 3,141 in stock
Adafruit Feather M0 Express Adafruit Industries LLC
ATSAMD21G18 Feather M0 Express SAM D ARM® Cortex®-M0+ MCU 32-Bit Embedded Evaluation Board
Digi-Key Mouser 364 in stock
The Arduino Nano 33 IoT with Headers (ABX00032) is a compact and versatile development board featuring the ARM® Cortex®-
Digi-Key Mouser 355 in stock
The Arduino Nano 33 IoT (ABX00027) is an advanced evaluation platform designed for IoT applications, featuring the 32 bi
Digi-Key Mouser 657 in stock
Part of SAM Microcontrollers family » SAMD21E

SAMD21E Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number RAM Package Flash Temp Range Stock
ATSAMD21E17A-AUT (this part) 16K TQFP-32 128KB -40degC ~ 85degC (.. 2,730
ATSAMD21E18A-MUT 32K VFQFN-32 256KB -40degC ~ 85degC (.. 24,578
ATSAMD21E18A-AUT 32K TQFP-32 256KB -40degC ~ 85degC (.. 11,120
ATSAMD21E18A-AFT 32K TQFP-32 256KB -40degC ~ 125degC .. 11,484
ATSAMD21E15B-AFT 4K TQFP-32 32KB -40degC ~ 125degC .. 2,970
ATSAMD21E18A-AU (Microchip) 32K TQFP-32 256KB -40degC ~ 85degC (.. 1,742
Also available as: ATSAMD21E17D-MZVAO, ATSAMD21E16B-AZVAO, ATSAMD21E18A-AZVAO, ATSAMD21E17D-AZVAO, ATSAMD21E18A-MZVAO, ATSAMD21E15B-MFT

Also Consider

ATSAMD21G18A-AUT MCHPMicrochip Technology - Higher-pin-count, widely used SAM D21 variant with similar Cortex-M0+ performance for more I/O.
STM32F072C8T6 STMicroelectronics - Cortex-M0 alternative with comparable performance and a different ecosystem for evaluation or migration.